Match Amounts Minimum $10, Maximum $2,500, Match Ratio 1:1. Employees / donors should register their matching gift requests electronically at https://mckesson.yourcause.com/. Donors must submit the matching gift request within three months (90 days of the date of the donation. McKesson offers multiple types of volunteer grants including: MVP Board of Directors Grants: $500 grants to organizations where employees serve on the board of directors. Departmental Team Building Service Grants: Grants up to $2,500 to organizations where five or more employees conduct an external team building service project. Conference Team Building Service Grants: Grants up to $10,000 to support organizations that benefit from a team building service project involving at least 500 employees at a McKesson conference.